Forecast: Warm with the chance of thundershowers

Issued July 30, 2018: Covering the period from August 1 to August 8

This map shows the total precipitation as a percentage of average across the Prairies during the 30-day period ending July 26. Most parts of agricultural Manitoba saw near- to slightly below-average amounts. A few locations in western and northwestern regions saw above-average amounts. Farther west, much of Saskatchewan and Alberta were dry, with the northernmost parts of these provinces receiving above-average rainfall in July. Photo:
Agriculture and Agri-Food Canada

Well, it looks as though the cool-down we experienced on a few days during the last forecast period was not the start of a pattern shift towards a cooler period. Instead, we saw temperatures quickly rebound back towards the 30° mark, continuing our warmer-than-average summer.

Wednesday and Thursday of this week look to be sunny and warm as high pressure pulls off to the east and an area of low pressure develops to our west. This will put us in a deep southerly flow allowing daytime highs to make it once again into the low 30s by Thursday. Overnight lows look to be fairly warm, only falling into the mid- to upper teens. We could see some thundershowers late on Thursday as the western low begins to move eastwards and pushes a warm front through our region.

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This area of low pressure is then forecasted to track through north-central Manitoba over the weekend, bringing warm but unsettled conditions to all of central and southern regions. Expect partly cloudy skies along with a fairly good chance of afternoon and evening showers or thundershowers, with the best chance of rain coming on Saturday. Sometime late Sunday or early Monday we will see a cold front move through as an area of high pressure builds in from the northwest.

This high will cool things down a little bit on Monday, but the high is forecasted to quickly move off to the east by Tuesday setting up a warm southwesterly flow to finish this forecast period. Expect plenty of sunshine with daytime highs once again climbing back into the low 30s by Wednesday, with a few locations in south-central regions possibly making it into the mid-30s.